Antenna using complex structure having periodic, vertical spacing between dielectric and magnetic substances

Abstract

The present invention relates to an antenna using a complex structure in which dielectric substances having a low dielectric constant and magnetic substances having a high magnetic permeability are arranged vertically and periodically in order to improve the gain, efficiency, and bandwidth of the antenna while maintaining a small size which is an advantage of a conventional antenna using dielectric substances having a high dielectric constant. The present invention provides the antenna using a complex structure having a vertical and periodic structure of dielectric substances and magnetic substances, comprising a substrate and a radiation patch formed on the substrate. The substrate includes a plurality of layers. Each of the layers has the dielectric substances and the magnetic substances of a bar shape alternately arranged therein and has the dielectric substances and the magnetic substances alternately laminated thereon even in a height direction.

What is claimed is: 
     
       1. An antenna using a complex structure having a vertical and periodic structure of dielectric substances and magnetic substances, the antenna comprising:
 a substrate; and 
 a radiation patch formed on the substrate,
 wherein the substrate includes a plurality of layers, and each of the layers has the dielectric substances and the magnetic substances of a bar shape alternately arranged therein and has the dielectric substances and the magnetic substances alternately laminated thereon even in a height direction. 
 
 
     
     
       2. The antenna according to  claim 1 , wherein the antenna resonates in multiple bands. 
     
     
       3. The antenna according to  claim 1 , wherein:
 the dielectric substances and the magnetic substances has a cross section of a regular quadrilateral, and 
 a length of each of faces of the dielectric substances and magnetic substances is 5 mm or 10 mm. 
 
     
     
       4. The antenna according to  claim 3 , wherein:
 the dielectric substances has a dielectric constant of 2.2 and a magnetic permeability of 1.0, and 
 the magnetic substances have a dielectric constant of 16 and a magnetic permeability of 16. 
 
     
     
       5. A wireless terminal apparatus comprising an antenna using a complex structure having a vertical and periodic structure of dielectric substances and magnetic substances, the antenna comprising:
 a substrate; and 
 a radiation patch formed on the substrate,
 wherein the substrate includes a plurality of layers, and each of the layers has the dielectric substances and the magnetic substances of a bar shape alternately arranged therein and has the dielectric substances and the magnetic substances alternately laminated thereon even in a height direction. 
 
 
     
     
       6. An antenna using a complex structure having a vertical and periodic structure of dielectric substances and magnetic substances, the antenna comprising:
 a substrate; and 
 a radiation patch formed on the substrate,
 wherein the substrate includes a plurality of layers, each of the layers has the dielectric substances and the magnetic substances of a bar shape alternately arranged therein, and long axes of the dielectric substances and the magnetic substances are perpendicular to each other. 
 
 
     
     
       7. The antenna according to  claim 6 , wherein the antenna resonates in multiple bands. 
     
     
       8. The antenna according to  claim 6 , wherein:
 the dielectric substances and the magnetic substances has a cross section of a regular quadrilateral, and 
 a length of each of faces of the dielectric substances and magnetic substances is 5 mm or 10 mm. 
 
     
     
       9. The antenna according to  claim 8 , wherein:
 the dielectric substances has a dielectric constant of 2.2 and a magnetic permeability of 1.0, and 
 the magnetic substances have a dielectric constant of 16 and a magnetic permeability of 16. 
 
     
     
       10. A wireless terminal apparatus comprising an antenna using a complex structure having a vertical and periodic structure of dielectric substances and magnetic substances, the antenna comprising:
 a substrate; and 
 a radiation patch formed on the substrate,
 wherein the substrate includes a plurality of layers, each of the layers has the dielectric substances and the magnetic substances of a bar shape alternately arranged therein, and long axes of the dielectric substances and the magnetic substances are perpendicular to each other.